Zinc Anode Caps
for Cathodic Protection Systems

Uses: Zinc anode caps should be used on pipeline fittings,
valves, flanges and bolts. The use of anodes will greatly improve
the corrosion resistance of steel, ductile iron and cast iron hardware.

Northtown
zinc anode caps are engineered to fight corrosion. When the caps are threaded
onto the bolts or studs, they become sacrificial anodes and protect
the flanges, mechanical joints and other metal parts. Our zinc anode
caps are precision made of the highest grade metal which meets or
exceeds the requirements of ASTM B-418-80,88 and MIL spec MIL-18001H,J,K.

Corrosion of underground mechanical joint fittings may prove to
be very costly, both in repair costs to pipelines and the untimely
interruption to the vital flow of water, oil or gas. Most failures
of pipelines can be directly related to the flange area where the
two ends of the pipeline are attached by a stud/bolt nut joint.
Northtown zinc anode caps are designed to sacrifice themselves rather
than allowing the underground water, oil or gas pipeline flange
area to succumb to the ravages of galvanic corrosion. The application
of the threaded zinc cap to the bolt head forms a galvanic cell,
thus causing the zinc anode cap to become a sacrificial anode, adding
many years of life to the pipeline and in turn saving down time
and high repair costs. Northtown zinc caps can provide many years
of life to underground pipelines.

We have the Zinc anode cap sizes that you need.
Caps are available in sizes from 1/2" up to 2" bolt threads.